High-temperature oxidation of Fe-2 1/4Cr-1Mo in oxygen

Journal Article · Mon Jun 01 00:00:00 EDT 1987 · Oxid. Met.; (United States)

DOI:https://doi.org/10.1007/BF00659272· OSTI ID:5390496

Simms, N J; Little, J A

The oxidation of a 2 1/4Cr-1Mo steel in dry flowing oxygen has been studied in the temperature range 550-700/sup 0/C for periods of up to 100 hr. A detailed low-resolution microstructural investigation revealed a layered oxide consisting of a very fine-grained and finely pored innermost layer of doped spinel, a central columnar-grained relatively coarsely pored layer of magnetite, and an outer fine-grained hematite layer with fine pores and covered with whiskers of ..cap alpha..-Fe/sub 2/O/sub 3/. This structure is compared with previous results on Fe and model Fe-Cr alloys, as are the kinetics of the oxidation reaction.

• Research Organization: Univ. of Cambridge (England)
• OSTI ID: 5390496
• Journal Information: Oxid. Met.; (United States), Vol. 27:5/6
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CHROMIUM-MOLYBDENUM STEELS
INTERGRANULAR CORROSION
MICROSTRUCTURE
OXIDATION
POROSITY
TEMPERATURE EFFECTS
OXYGEN
CORROSIVE EFFECTS
BOILERS
CHEMICAL REACTION KINETICS
CORROSION RESISTANCE
FERRITIC STEELS
FURNACES
HEMATITE
HIGH TEMPERATURE
MAGNETITE
SCALING
SPINELS
WHISKERS
X-RAY DIFFRACTION
ALKALINE EARTH METAL COMPOUNDS
ALLOYS
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CHALCOGENIDES
CHEMICAL REACTIONS
CHROMIUM ALLOYS
CHROMIUM STEELS
COHERENT SCATTERING
CORROSION
CRYSTAL STRUCTURE
CRYSTALS
DIFFRACTION
ELEMENTS
IRON ALLOYS
IRON BASE ALLOYS
IRON COMPOUNDS
IRON ORES
IRON OXIDES
KINETICS
MAGNESIUM COMPOUNDS
MAGNESIUM OXIDES
MINERALS
MONOCRYSTALS
NONMETALS
ORES
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
REACTION KINETICS
SCATTERING
STEELS
TRANSITION ELEMENT COMPOUNDS
360105* - Metals & Alloys- Corrosion & Erosion
360102 - Metals & Alloys- Structure & Phase Studies
360202 - Ceramics
Cermets
& Refractories- Structure & Phase Studies